Home / 563,672.12-777,846.90-309,017.72

Finding the Fourth Proportional to 563,672.12, 777,846.90 and 309,017.72

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Solution

The fourth proportional to 563,672.12, 777,846.90 and 309,017.72 is: 426,433.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,672.12 : 777,846.90 = 309,017.72 : x
  2. Step 2: Convert to fraction form
    563,672.12/777,846.90 = 309,017.72/x
  3. Step 3: Cross multiply
    563,672.12x = 777,846.90 × 309,017.72
  4. Step 4: Simplify right side
    563,672.12x = 240,368,475,547.07
  5. Step 5: Solve for x
    x = 240,368,475,547.07/563,672.12
  6. Step 6: Final answer
    x = 426,433.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.